apply_filters( ‘load_textdomain_mofile’, string $mofile, string $domain )

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   Manuel Schmalstieg 9 years ago

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   An example that allows to override the default translations of a plugin:

   add_filter( 'load_textdomain_mofile', 'my_custom_translation_file', 10, 2 );
   /*
    * Replace 'textdomain' with your plugin's textdomain. e.g. 'hello-dolly'. 
    * Define your filename, such as: yourtranslationfile-en_GB.mo
    * Define the location, for example: wp-content/languages/textdomain/yourtranslationfile-en_GB.mo
    */
   function my_custom_translation_file( $mofile, $domain ) {
     if ( 'textdomain' === $domain ) {
       $mofile = WP_LANG_DIR . '/textdomain/yourtranslationfile-' . get_locale() . '.mo';
     }
     return $mofile;
   }